Question

How does the cell membrane aid the cell in maintaining homeostasis?

1. The cell membrane uses energy to remove waste products from the cell through sac-like packages.

2The cell membrane controls all cellular activities in response to changes in the external environment.

3The cell membrane assists with maintaining the correct temperature by absorbing energy.

4The cell membrane extracts energy from food when the cell is low on energy.

Answer 1

1. Should be the correct answer.

While number 2 is true in some sense, I don’t think it is appropriate to say that all cellular activities result from a response to changes in the external environment. Only some processes stem from signal transduction originating in the cell membrane.

The question is poorly written in my opinion.